TEST STRATEGY FOR PROFILE-GUIDED CODE EXECUTION OPTIMIZERS

摘要

Systems, methods and computer program products are described herein for testing a system that is designed to optimize the execution of code within an application or other computer program based on profile data collected during the execution of such code. The embodiments described herein utilize what is referred to as a “profile data mutator” to mutate or modify the profile data between the point when it is collected and the point when it is used to apply an optimization. By mutating the profile data at this point, testing of a system for optimized code execution can be significantly more thorough. Furthermore, such profile data mutation leads to a more scalable and efficient testing technique for profile-guided systems for optimized code execution.

主权项

1. A system, comprising:
one or more processing units; and a memory coupled to the one or more processing units, the memory storing software modules for execution by the one or more processing units, the software modules comprising:
a runtime engine that is configured to execute a script, to collect profile data concerning the script during execution thereof, and to perform just-in-time (JIT) compilation of selected portions of the script based on the profile data to obtain efficient execution thereof; anda profile data mutator that is configured to modify one or more profile data entities within the profile data to facilitate testing of the runtime engine.